chore: update 2025 public holidays (#4043)

Author: jloh02

website/src/data/holidays.json

@@ -59,5 +59,16 @@
   "2024-10-31",
   "2024-11-01",
   "2024-12-25",
-  "2025-01-01"
+  "2025-01-01",
+  "2025-01-29",
+  "2025-01-30",
+  "2025-03-31",
+  "2025-04-18",
+  "2025-05-01",
+  "2025-05-12",
+  "2025-06-07",
+  "2025-08-09",
+  "2025-10-20",
+  "2025-12-25",
+  "2026-01-01"
 ]